Methanothermobacter thermautotrophicus (Zeikus and Wolfe 1972) Wasserfallen et al. 2000 Methanobacterium thermautotrophicum corrig. Zeikus and Wolfe 1972 (Approved Lists 1980) emend. Touzel et al. 1992 Methanobacterium thermoautotrophicum (sic) Zeikus and Wolfe 1972 (Approved Lists 1980) emend. Touzel et al. 1992 Methanobacterium thermoformicicum Zhilina and Ilarionov 1986 Nölling J. Hahn D. Ludwig W. de Vos W.M. Phylogenetic Analysis of Thermophilic Methanobacterium sp.: Evidence for a Formate-Utilizing Ancestor 1993 16 208 215 Systematic and Applied Microbiology Syst Appl Microbiol 0723-2020 Zhilina T.N. Ilarionov S.A. Isolation and comparative characteristics of methanogenic bacteria assimilating formate with the description of Methanobacterium thermoformicicum sp. nov. 1984 53 785 790 Mikrobiologiya (Russian) 0026-3656